Re: retailer -> product description page, which property?

Dear Phil:

Use ProductModel for the brand-owned page, plus as many http://schema.org/additionalProperty values for product features as you can populate (and idealy some of the standard product properties.

Use schema:Product (or more specific SomeProducts for a bag of unidentified new products, or IndividualProduct for a unique item (like used item on eBay)). Attach offer and sales-specific info thereto.

Then either link both implicitly by the same schema:gtin13 or other strong identifiers to both the model and the products, or by explicit links using http://schema.org/model from the product to its model; the latter option requires that both entities have a globally unique identifier, i.e. an URI. If they are blank nodes as in most actual commerce sites, the strong identifier approach is preferrable.

I never found the time to finalize the respective part of the GoodRelations documentation, but here are some fragments:

    http://www.heppnetz.de/projects/goodrelations/primer/#5.2_Products_and_Services:_Models.2C_Classes.2C_and_Instances

    http://wiki.goodrelations-vocabulary.org/Documentation/Product_or_Service

    http://wiki.goodrelations-vocabulary.org/GoodRelations_for_manufacturers


Then, using the non-standard reasoning rules for GoodRelations, you can infer product features from models to individual products, see here:


    http://wiki.goodrelations-vocabulary.org/Axioms#Product_Variants

The examples still use the official GoodRelations identifiers, but a mapping is here:

    http://wiki.goodrelations-vocabulary.org/Cookbook/Schema.org#Naming_Differences

Hope that helps.

Best wishes
Martin Hepp

-----------------------------------
martin hepp  http://www.heppnetz.de
mhepp@computer.org          @mfhepp




> On 22 May 2018, at 16:01, Phil Archer <phil.archer@gs1.org> wrote:
> 
> Dear all,
> 
> Imagine a retailer's product description page, such as
> 
> https://www.tesco.com/groceries/en-GB/products/254880991
> 
> and the brand-owned product description page, in this case
> 
> https://www.marmite.co.uk/products/marmite-big-jar-250g
> 
> What's the relationship between those two pages?
> 
> Looking at [1], it looks like it should be one of:
> 
> - mainEntity (problem: domain is CreativeWork rather than Product which 
> is how we see it);
> 
> - url: The url property should be reserved to refer to more official or 
> authoritative web pages, such as the item’s official website - definite 
> candidate);
> 
> - about (a bit vague)
> 
> - sameAs: The sameAs property also relates a thing to a page that 
> indirectly identifies it. Could be.
> 
> URL seems the best fit but does it feel right? sameAs seems very 
> relevant too. Context: we (GS1) are defining a common syntax for URIs 
> that encode our identifiers (including GTINs) and working to make them 
> all resolvable and this is tied in with that effort.
> 
> Thanks
> 
> Phil
> 
> [1] http://schema.org/docs/datamodel.html#mainEntityBackground
> 
> 
> -- 
> Phil Archer
> Director, Web Solutions
> https://www.gs1.org
> 
> http://philarcher.org
> +44 (0)7887 767755
> @philarcher1
> Skype: philarcher
> 
> 
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Received on Thursday, 24 May 2018 22:52:11 UTC